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(No Model.) ,7 2 SheetsSheet 1.

G. OROMPTON & H. WYMAN.

WEFT STOP MOTION FOR LOOMS. No. 299,966. Patented June 10, 1884.

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GEORGE OROMPTON AND HORACE \VYMAN, OF WORCESTER, MASS.

WEFT STOP-MOTION ,FOR LOOMS.

EJPECIFICATION forming part of Letters Patent No. 299,966, dated June 10, 1884.

Application filed April 4, 1883. (No model.)

To all whom it may concern.-

Be it known that we, GEORGE CRoMrToN and HORACE WYMAN, of Worcester, county of Worcester, State of Massachusetts, have invented an Improvement in lVeft Stop-Motions for Looms, of which the following description, in connection with the accompanying drawings, is aspecification, like letters on the drawings representing like parts.

Our invention consists in a novel knockingoff rod in combination with a supportingstand, and means to effect rotary oscillation of the said red as it is moved longitudinally; also in the combination, with a rotating or oscillating knocking-off rod, of a drop-rod pivoted directly upon an ear or projection forming the head of the weft-feeler or fixed with relation to and made movable with the said weft-feeler.

Looms having shuttle-box mechanism of the No. 197,754 and No. 230,243, have for a long time contained a stop-motion mechanism having a drop-rod connected by a link with a part of the arm or head carrying the weftfeeler; and the said drop-rod has been lifted the lay, and during the forward movement of the lay, if the weft was broken or absent, the drop-rod was permitted to strike a latch pivoted on a knocking-off slide, the forward end of which was adapted to strike a lever and release the shipper. In this our invention we employ a knocking-off rod made round and provided with a rigid projection, one part of which is acted upon by the lower end of the drop-rod if the weft is broken or absent while another portion of the said projection co-operates with a curved, warped, or cam surface on the rod-guiding bracket and rocks or oscillates the said rod as it is moved forward, thus lowering the projection below the end of the drop-rod, so that the latter need not be unment of the lay, and so that the projection moved backward and will remain out of operative position until again set in such position bymoving the knocking-off rod backward, which is done when the 100111 is again to be started. This knocking-off rod is a very strong, simple, and durable device. By attaching the drop-rod directly to the head or block with which the weft-feeler is connected, and placing it loosely in a guideway, we are enabled to'dispense with the usual link-connection heretofore used, thus simplifying the constructions of the parts.

Figure 1 represents in front elevation a suf ficient portion of the breast-beam and lay of a loom to illustrate the application of our improvements thereto, the breastbeam and lay and some of the otherparts being partially broken out to more clearly show the remaining parts. Fig. 2 is a sectional detail taken through and at right angles to the breast beam and lay. Fig. 3 is a top view of Fig. 2; Fig. 4, another sectional detail with the lay forward and weft absent; Fig. 5, a broken top View of the parts shown in Figs. 3 and 4, the lay an'dits attached parts being removed, leaving the other parts as in-Fig. 4; and Figs. 6, 7, and 8 are details to be referred to.

The breast-beam o, loom side A, lay B, shipper-handle m, rod 8, handle 25, and device c are substantially as in United States Patent No. 265,659, dated October 10, 1882, to which reference may be had where they .are designated by the same letters. The plate a, attached to the breast-beam, has guideways to receive the bracket 1) attached thereto by screws 1), extended through slots :0 (see Fig. 8,) so as to be adjusted vertically to place the foot b of the said bracket at the proper height with relation to the lay B. The foot of the bracket 7) is suitably grooved to receive the shank of the rod-guiding plate 0, slotted as shown at 3, Fig. 3, to be adjustably attached thereto by the adjusting screws or bolt 1). The bracket 0 has two curved cam-like or warped surfaces, 0 c and the round knocking-off rod has two projections, (1 d which act, respectively against the said surfaces c c as the rod is reciprocated, as will be described, and cause the said rod to partially rotate or oscillate in the said bracket between the projections or ears d d and 5 and 6. The cam h is adjustably connected by bolt h to the ear 6 of the bracket 0, and at the rear end of the said bracket is a back-stop, 0, attached thereto, preferably in an adjustable manner, by the bolt 6. The guide-plate it attached to the lay B, has ears 10, to receive the pin or rockshaft h of the head-piece h, to which the weftfeeler h is connected by screws 13. The droprod h is connected with the head h by the pin h, and is extended loosely into the grooved face of the guide-plate 7L8, behind a guard or bar, h". The lay is chambered at If, as usual, to receive the weftfeeler h in case the weft is broken or fails to be laid by the shuttle across the said space. Then the weft is absent or broken or fails to hold up the weftfeeler as the lay is moved toward the breastbeam for the reed to strike the cloth at the fell, the lower end of the drop-rod h rides down the incline of the cam h sufficiently to meet the projection (1 which at that time is turned up, as shown in Figs. 2, 3, and 6, and moves the knocking-off rod d forward from its position shown in Figs. 2 and 3 to the position shown in Figs. 4 and 5, the front end of the said rod d striking against the arm f of the lever f f, pivoted at f on a plate, f adjustably attached to the under side of the breastbeam by screws 18, extended through slots in the said plates, as shown in Fig.3, causing the arm f of the said lever to act against'the block 8 attached to the rod 8, which, thus moved, will release the shipper-handle m and stop the loom, as described in the patent referred to. The lever ff has aprojection, 14,which strikes the shoulders 15 16 of the plate f and thus limits the extent of movement of the said lever. As the lower end of the drop-rod in contact with the projection d of the knocking-off rod carries the same forward during the forward movement of the lay, the projection d strikes the curved or twisted surface 0 and causes the said knocking-off rod to be turned or oscillated about its longitudinal center until the projection d is depressed to pass below the end of the drop-rod If, that happening just as the knocking-off rod has moved the leverf f and the drop-rod passes beyond the projection (Z as in Figs. 4. and 5. As the lay B is moved backward or away from the breastbeam, the lower end of the drop-rod passes over the projection d and strikes against and rides up the cam or incline 72, lifting the said drop-rod and the weft-feeler, as in Fig. 2, ready for the passage of the shuttle along the race of the lay, as usual. lVhen the loom is to be again started, movement of the rod .9 in the direction of the arrow 19, Fig. 5, by the handles m or i will cause the block .9 to act against the arm f of the lever f f, and move the said lever to slide the knocking-off rod (1 in the direction of the arrow 20 or back into working position with its rear end against the back-stop c, as in Fig. 2. As the rod (1 is so moved backward, the projection d acts on the inclined curved or twisted surface 0", and the said rod is thereby oscillated or turned in the reverse direction from that when it was moved forward, as before described, and the projection d is again elevated into the path of movement of the lower end of the drop-rod h At the next forward movement of the lay, if the weft has been properly laid across the warps and the feeler is held up by the said weft, the lower end of the rod 7L2 will not descend so low as to touch the projection d of the rod (Z, and the latter will not be moved forward to knock off the shipper-handle and stop the loom.

By making the parts a b 0 adjustable, as described, both vertically and longitudinally, the weft stop-motion devices may be readily ap plied to the loom in operative position.

As a modification of our invention, it is obvious that the projection (1 may enter a camslot, one part of which will be the surface 0", and then the curved or twisted surface 0" would not be required.

I claim-- 7 1. The breast-beam, the rodguiding plate provided with a curved or twisted surface, and means to support the said plate from the breastbeam, and the knocking-off rod (1, provided with a suitable projection to co-operate with said surface .and turn the knocking-off rod about its axis, combined with the lay, an attached plate, a weft-feeler supported by the said plate, and intermediate devices under the control of the weft-feeler to operate the rod (1 and move it forward when the weft fails, substantially as and for the purpose described.

2. The lay, the weft-feeler, a frame in which.

it is pivoted, and a drop-rod pivoted directly to the head of the weft-feeler, the knockingoff rod provided with projections (1 d and a GEO. OROMPTON. HORACE \VYMAN.

Witnesses:

J. B. SYME, J. A. WARE. 

